#!/usr/bin/env python3

import sys
import math
from bisect import bisect_right as br
from bisect import bisect_left as bl
sys.setrecursionlimit(2147483647)
from heapq import heappush, heappop,heappushpop
from collections import defaultdict
from itertools import accumulate
from collections import Counter
from collections import deque
from operator import itemgetter
from itertools import permutations
mod = 10**9 + 7
inf = float('inf')
def I(): return int(sys.stdin.readline())
def LI(): return list(map(int,sys.stdin.readline().split()))

x = I()
if 400 <= x <= 599:
    print(8)
elif 600 <= x <= 799:
    print(7)
elif 800 <= x <= 999:
    print(6)
elif 1000 <= x <= 1199:
    print(5)
elif 1200 <= x <= 1399:
    print(4)
elif 1400 <= x <= 1599:
    print(3)
elif 1600 <= x <= 1799:
    print(2)
elif 1800 <= x <= 1999:
    print(1) import sys sys import math math from bisect import bisect_right as br from bisect import bisect_left as bl sys.setrecursionlimit(2147483647) sys.setrecursionlimit sys setrecursionlimit 2147483647 from heapq import heappush, heappop,heappushpop from collections import defaultdict from itertools import accumulate from collections import Counter from collections import deque from operator import itemgetter from itertools import permutations mod = 10**9 + 7 mod 10**9 + 7 10**9 10 9 7 inf = float('inf') inf float('inf') float 'inf' def I(): return int(sys.stdin.readline()) I def LI(): return list(map(int,sys.stdin.readline().split())) LI x = I() x I() I if 400 <= x <= 599:
    print(8)
elif 600 <= x <= 799:
    print(7)
elif 800 <= x <= 999:
    print(6)
elif 1000 <= x <= 1199:
    print(5)
elif 1200 <= x <= 1399:
    print(4)
elif 1400 <= x <= 1599:
    print(3)
elif 1600 <= x <= 1799:
    print(2)
elif 1800 <= x <= 1999:
    print(1) 400 <= x <= 599 400 <= x 400 x 599 print(8) print 8 elif 600 <= x <= 799:
    print(7) 600 <= x <= 799 600 <= x 600 x 799 print(7) print 7 elif 800 <= x <= 999:
    print(6) 800 <= x <= 999 800 <= x 800 x 999 print(6) print 6 elif 1000 <= x <= 1199:
    print(5) 1000 <= x <= 1199 1000 <= x 1000 x 1199 print(5) print 5 elif 1200 <= x <= 1399:
    print(4) 1200 <= x <= 1399 1200 <= x 1200 x 1399 print(4) print 4 elif 1400 <= x <= 1599:
    print(3) 1400 <= x <= 1599 1400 <= x 1400 x 1599 print(3) print 3 elif 1600 <= x <= 1799:
    print(2) 1600 <= x <= 1799 1600 <= x 1600 x 1799 print(2) print 2 elif 1800 <= x <= 1999:
    print(1) 1800 <= x <= 1999 1800 <= x 1800 x 1999 print(1) print 1 inf = float('inf') float('inf') inf x = I() I() x def LI(): return list(map(int,sys.stdin.readline().split())) def LI(): return list(map(int,sys.stdin.readline().split())) LI def I(): return int(sys.stdin.readline()) def I(): return int(sys.stdin.readline()) I mod = 10**9 + 7 10**9 + 7 mod
#!/usr/bin/env python3

import sys
import math
from bisect import bisect_right as br
from bisect import bisect_left as bl
sys.setrecursionlimit(2147483647)
from heapq import heappush, heappop,heappushpop
from collections import defaultdict
from itertools import accumulate
from collections import Counter
from collections import deque
from operator import itemgetter
from itertools import permutations
mod = 10**9 + 7
inf = float('inf')
def I(): return int(sys.stdin.readline())
def LI(): return list(map(int,sys.stdin.readline().split()))

x = I()
if 400 <= x <= 599:
    print(8)
elif 600 <= x <= 799:
    print(7)
elif 800 <= x <= 999:
    print(6)
elif 1000 <= x <= 1199:
    print(5)
elif 1200 <= x <= 1399:
    print(4)
elif 1400 <= x <= 1599:
    print(3)
elif 1600 <= x <= 1799:
    print(2)
elif 1800 <= x <= 1999:
    print(1)